Secondary to the point: if you're on Unix, the program lsof will do this for you. Despite its name, it also lists open ports and what processes are holding them open (lsof -i). It's not perl, but it should definitely be in your toolbox. I've found it indispensible.

Chris
M-x auto-bs-mode

In reply to Re: Programming and Instant Gratification by lachoy
in thread Programming and Instant Gratification by Masem

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